Door.



G. B. DOREY.

DOOR.

APPLICATION FILED DEC. I3, 1912.

LIGJW. Patented Feb.1,1916.

3 SHEETS-SHEET l.

THB CDLUMBIA PLANOGRAPH Cu.. WAHINGTDN. D. C.

G.BD0REY DOOR.

APPLICATION FILED DEC. I3, 1912.

'LIIQY Patented Feb. 1, 1916.

3 SHEETS-SHEET 2.

5) HTTOF/VEY THE COLUMBIA PLANOGRAPH CD., WASHINUTON, D. C

G. B. DOREY.

DOOR.

APPLICATION HLED 056.13, 1912.

Patented Feb. 1, 1916.

meewe,

3 SHEETS-SHEET 3.

W/ T/VESSES' THE coLuMxA puugouRAPH co., WASHINGTQN, D. c.

NATM@ ATN @FFM GEORGE BINET; DOREY, OF MUNTREAL, QUEBEC, CANADA, ASSGNOR TO NATIONAL DUMP. CARCOTIPANY, OF CHICAGQ, ILLINOIS, A CORPORATION OF MAINE.

DOOR.

Specication of Letters Patent.

Patented Feb. 1, 1916..

Application filed December 13, 1912. Serial No. 736,564.

certain new and useful Improvements in Doors; and l do hereby declare that the following is a full, clear, and exactdescription of the same.

This invention relates more particularly to doors for closing gravity discharge openings, such as the' discharge openings of hoppers or other receptacles, being especially adapted for application to cars used for transporting grain or other comminuted material.

This invention has for an object to provide an improved type of door which will be proof against leakage of the grain or other material.

For further comprehension however, of the invention and of the objects and advantages thereof, references will be had to the following description and appended claims, and to the accompanying drawings forming part of this specification in which similar reference characters indicate the same parts and wherein:

Figure 1 is a vertical sectional view of the door showing it in connection with a portion of the understructuie of a car. Fig. 2 is a horizontal view partly in section taken on line ,2*2 Fig. 1 and looking down. Fig. 3 is a vertical section at right angles to Fig. 1 on the line 8*3 Fig. 1. Fig. 4 is an enlarged vertical section of the free side of the i door with the adjacent portions of the door frame.

ln the drawings the. door is shown as closing the discharge opening of a shallow hopper located in the bottom of tliecar and carried by the understructure a small por tion of which, comprising a center sill 1, side sill 2 and connecting cross bearers 3, is shown.

A portion of the car flooring is shown at e and side wall at 5', the flooring having the usual hinged section Llabove the hopper which is adaptedto be thrown up to the position shown when the car is loaded with material to be discharged through the openings in the bottom.

The hopper is provided on three of its sides (in this instance the side nearest the center sill and the two adjacent sides) with walls 5, 6 additional to the car underframe and which present at their lower edges downwardly projecting flanges 8, the fourth wall of the' hopper being here constituted by the "l:

side sill 2 of the car to which the ends of the walls 6 are suitably attached, this side sill being of channel-shape in cross section with its flanges turned inwardly toward the hopper, the bottom flange supporting and sealing the free edge of the door as will be presentljT pointed out, this flange being spaced slightly below the adjacent ends of the downturned flanges '8.

The door is shown at 10 and is preferably provided on three sides with upwardly projecting flanges 11A adapted to inclose the flanges 8 on the hopper while the fourth side of the doorl is left unflanged and,` projects over the inturned flange of the side sill by Vwhich it is supported, these flanges on the hopper and side sill constituting the door frame. This door is adapted to open atV the side engaging the side sill and swing down to permit 'of the discharge of the material and means are provided to enable the door to have lateral movement to` clear such flange and swinging movement to open or close. To this end Il prefer to mount the door on the upper ends of a pair of rigid links 15 which are pivoted at their lower ends on brackets 1G riveted or otherwise secured to the cross bearers 3, the flanges 11 having riveted thereto straps 17 tol which the links pivot. As shown clearly in Fig. 1 of the drawings the links are ai'- ranged in such a manner that when the door is closed the vertical force due to gravity, of the door downward into tight contact with the inturned flange also prevents acci dental opening of the door because the natural tendency of the latter is to move bodily in the direction of its fre-e side with respect to the link mounting, thus forcing its free edge tightly against the door frame and positively maintaining itself in closed position. This advantageous result is obtained by arranging the parts in the manner of a j Ain addition to forcing the free side lll@ the underside of the door adjacent the free edge thereof, such tongue projecting across the underface of the side sill and under an angular bracket 2l fixed thereto, the bracket 1and tongue having registering perforations through which a locking pin 22 is dropped. The tongue and door form anV outwardly flared opening for the Vreception of theV wedge-like flange of the side-sill which constitutes; one wall of the discharge hopper.

To enable the door to be released I provide on the underside thereof brackets 23 which maybe struck ywith a suitable implement such' as a hammer to Vforce the door back until the edge thereof clears the flange ofthe side sill while chains 24E may be attached at one end to such bracket and at the other endto the side sill to limit the downward movement of the door.

What I claim is as follows:

l. In combination, a door frame, and a hinged door projecting under the said frame on three sides and over it on the fourth side.

2. The combination with a receptacle presenting a door frame inclosing a gravity .discharge opening, of a hinged door projecting under the door frame on three sides Vand over it and into the opening on the fourth side.

3.' The combination with a receptacle presenting a door frame stationary with respect to the car and inclosing a gravity discharge opening, of av door projecting over the door frame on one side, and a swinging hinge device whereby the opposite side of the door is mounted.

4c. The combination with a door frame presenting an inturned flange on one side, of a door adapted to project over such flange on its adjacent side, and means hinging the opposite side of the door in a manner to y permitI both of swinging movement and bodily movement laterally. 5. The combination with a door frame Vpresenting an inturned flange on one side, of

a vdoor adapted to project over such flange on its adjacent side, and means hinging the opposite side yof the door in a manner to permit both of' swinging movement and bodily movement laterally, including a pair 'j of pivoted links having the door pivotally connected to their free ends.

" flanges, the fourth side of the door said downwardly projecting flanges, the fourth side of the door projecting over the said inturnedflange, and means hinging the opposite side of the door in a manner to permit both of swinging movement and bodily movement laterally.

8. In combination, a door frame presenting downwardly projecting flanges on three sides and an inturned flange on the fourth side, and a door having upwardly projecting flanges on three sides adapted to inclose the said downwardly projecting flanges, the fourth side of the door projecting over the said inturned flange, vand means hinging the opposite side of the door in a manner to permit both of swinging movement and bodily movement laterally including a pair of pivoted links having the door pivotally connected to their free ends.

9. In combination, a door frame presenting downwardly projecting flanges on three sides and an inturned flange on the fourth side, and a door having upwardly projecting flanges on three sides adapted to inclose the said downwardly projecting flanges, the fourth side of the door projecting over the said inturned flange, such door having a link mounting adapted to cause the force of gravity to act to hold the door in its position projecting over the said inturned flange.

10. In a car having an understructure including a side sill presenting an inturned flange at its lower side, a hopper having one wall thereof constituted by such side sill, such hopper having a discharge opening in its bottom, and a door closing such discharge opening and having one side thereof projecting over the said inturned flange.

11. In a car having an understructure including a side sill presenting an inturned flange at its lower side, a hopper having one wall thereof constituted by such side sill, the remaining walls of the hopper presenting downwardly projecting flanges, such hopper having a discharge opening in its bottom inclosed by the said flanges, and a door closing such discharge opening and having upturned flanges on three sides inclosing the said downwardly projecting flanges and the remaining side thereof projecting over the said inturned flange.

12. In combination, a door frame, and a door projecting under the said frame on three sides and over it on the fourth side, and a packing strip interposed between the edge of the door and the frame on the last mentioned side.

13. In combination, a door frame presenting downwardly projecting flanges on three sides and an inturned flange on the fourth side, and a door having upwardly projecting flanges on three sides adapted to inclose the said downwardly projecting flanges, the fourth side of the door projecting over the said inturned flange, and a packing strip 1n testimony whereof, I have signed my interposed between the edge of the dool` and name to this specification, in the presence of 10 the frzme on tllge last mentioned side. two subscribing Witnesses.

14. n com ination, a door rame a hinged door proj eating under the said frzune GEORGE BINET DOREY on three sides and over it on the fourth side Witnesses: and means for locking the do011 in such ALEX. CURRIE, position. ALBERTIS BATCHELOR.

Gopies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents.

Y Washington, D. C. 

